Peony mixes red paint and white paint in the ratio 1:3 She uses four tins of red paint Work out the total number of tins of pain
1 answer:
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Answer:
cscθ =
Step-by-step explanation:
cscθ =
For a unit circle, radius = 1
hence, hypotenuse = 1
opposite = y
cscθ =
Given:
n = 40, sample size
Confidence level = 99% => z* = 2.58
, sample proportion.
By definition, the margin of error is
Answer:
According to Sarah's poll, she can conclude with 99% confidence level that 20% of the high school population is happy with the quality of the cafeteria food, with a margin of error of +/- 16.3%.
n = 40, sample size
Confidence level = 99% => z* = 2.58
By definition, the margin of error is
Answer:
According to Sarah's poll, she can conclude with 99% confidence level that 20% of the high school population is happy with the quality of the cafeteria food, with a margin of error of +/- 16.3%.